Malone Co-Pilot 2 Add-On - The Co-Pilot 2 Add-On by Malone doubles the capacity of your Pilot HM2 Rack! The pivoting ratchet arm secures bike's front wheel and works with the rear tray to prevent bike to bike contact. The Co-Pilot can carry bikes with 20- 29 inch wheels, is compatible with 5 inch wide tires, and can carry 60 lbs per bike meaning that you can take almost any bike anywhere. Don't leave any friends behind on your way to the trails with the Co-Pilot 2 Add-On by Malone!